* For backends that support it, custom HTTP headers can be set on files.
* Added a getStreamHeaders() function to MediaHandler to let subclasses
recommend header name/value pairs to be used for responses to GET/HEAD
requests. For example, an OGG handler could set "X-Content-Duration".
* Made LocalFile use this function to set HTTP headers of new uploads.
Change-Id: I1b017e1342513f0097fe6d142aae18e819403293
* This lets callers update the cache/db with the operation progress so that
APIs can be made to use this and expose this information to client polling.
Change-Id: I9a86c1c5ffccf029be5a150e5998c3ce4740ec62
* This can speed up certain video file operations for scripts that support
specifying source files via URLs and support HTTP Range headers.
* Updated unit tests.
Change-Id: I60cb95c2e3dd9f7df1f740e9182be7c79af69d6e
* This lets callers use "copy if exist" semantics more easily and avoids extra stat
queries to the backend (since the cache is cleared before doOperations()).
* Tweaked FileOp::fileSha1() to reduce backend stat requests as 404s are not cached.
Change-Id: Icb5ca14b3316f273d53593f48979d14e113990e1
* Optimized these in Swift to use pipelined GETs.
* This can also be used to improve concatenate().
Change-Id: Ibeb5df7532f9f5c16736b20c28b7c0d9ddfb412f
* This moves some options code from FileBackend to FileBackendStore,
where it belongs. This also allows for reuse by other operations.
Change-Id: Ic9a7d36a6e4bc6b815a7d68926105401f65c53fb
